The duel between Uther and Gilli occurred during the final round of the Decennial Tournament.
Events[]
Gilli initially used his magic to cheat and overpowered Uther, knocking him to the ground. He attempted to stab Uther while he was down, but Merlin used his magic to intervene and caused Gilli's sword to become stuck in Uther's shield.
Uther used his shield to shove Gilli away and reclaimed his sword. Unwittingly aided by Merlin, who repeatedly used his magic to counteract Gilli's, Uther easily overpowered the boy. He knocked him to the ground and held him at swordpoint, winning the duel (The Sorcerer's Shadow).